Haystack

Haystack is a command-line utility for breaking up sensitive files into user-determined quantities of indistinguishble fragments.

Installation

After cloning this repository, navigate to the root of the mix project directory and run the following commands.

mix deps.get

mix escript.build

mix escript.install

If you have not run elixir CLI programs before, you may also be prompted to append ~/$HOME/.mix/escripts to your $PATH

--in | -i
Path to the input file to be fragmented.
--count | -c
Number of fragments to split the file into during fragmentation.
--keyfile | -k
Path to a file containing the plaintext password to be used for encryption/decryption.
--out | -o
Path to the output directory where fragments will be written out to.
--save_orig | -s
(Optional) flag to prevent deletion of original file upon fragmentation.

Split file into 100 fragments (you will be prompted for an encryption password).

haystack fragment --in path/to/orig_file --count 100 --out path/to/frags_dir/

Split file into 100 fragments, read encryption password from a keyfile, and don't delete original file.

haystack fragment -i path/to/orig_file -c 100 -o path/to/frags_dir/ --keyfile path/to/keyfile --save_orig

--in | -i
Path to the input directory containing all fragment files.
--keyfile | -k
Path to a file containing the plaintext password to be used for encryption/decryption.
--out | -o
Path to the output location where the original file will be reassembled.

Reassemble original file using a password prompt for decryption.

haystack reassemble --in path/to/frags_dir/ --out path/to/reassem_dir/

Reassemble original file using a keyfile for decryption.

haystack reassemble --in path/to/frags_dir/ --keyfile path/to/keyfile --out path/to/reassem_dir/